Adaptive beamforming for large arrays in satellite communications
- Resource Type
- Conference
- Authors
- Montesinos, Julien; Besson, Olivier; Guiraud, Cecile
- Source
- 2008 IEEE Antennas and Propagation Society International Symposium Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE. :1-4 Jul, 2008
- Subject
- Fields, Waves and Electromagnetics
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Aerospace
Signal to noise ratio
Interference
Array signal processing
Loading
Sensors
Gain
Satellites
- Language
- ISSN
- 1522-3965
1947-1491
We have presented here two different reduced rank adaptive beamformers to be used to achieve a flexible coverage. The CG always applies whereas the DLPK can only be used with previously known DOA. Both have a reduced computational complexity compared to MVDR solution, which however cannot be computed with low number of snapshots (N ≪ M). The CG beamformer provides the best SINR and high convergence speed. The combination of reduced-rank adaptive beamforming and SDMA, that is proper resource allocation must now be studied to assess the reachable final improvement in system capacity.